This salt marsh in Southern France is as pink as the flamingos that inhabit it.

135 bronze medallions mark a French meridian line which once rivaled the hotshot Greenwich timeline.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

A natural arch carved by a river gave its name to the so-called "Cave of Forgotten Dreams."

France's most famous cemetery, with some of its most curious tombs.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

An abstract monument to a symphonic composer.

A subterranean house of worship carved right out of the bedrock.

An empty relic of the Moscow Olympics crumbles away in Estonia's capital.

An existential riddle in the world's largest ancient castle.

An enormous and lavish Gothic church in Czechia.

A surreal statue honoring Prague's favorite literary son.

Monument to a suicide protesting the Soviet invasion.

Synagogue built from the stones of Solomon's temple contains the golem of Prague.

What looks like a suicide in progress is actually a statue of Sigmund Freud.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

Macabre astrological automaton clock dating to the late 1400s.

A church of bones, decorated with 40,000 human skeletons.

This elaborate temple was built around one of the Buddha's teeth.

An ancient stone fortress considered by many to be the eighth wonder of the world.

This former “ante-chamber to the guillotine” has been refurbished to illustrate the brutal history of French justice.

This bridge was constructed from the rubble of the infamous Bastille.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.